Insulated driving connection



. Aug. 4, 1931'. w. E. KROTEE 'Eg-E INSULATED DRlvING CONNECTION Filed sept. 27, 1929 M P Y W W .I h 'wtmnofc Walter E KrmtEE MKM! Patented Aug. 4, 1931 WALTER E. KROTEE, or PHILADELPHIA, .PENNSYLVANIA INSULATED DRIVING CONNECTION A.Application filed September 27, 1929, Serial 110.395,660..

(GRANTED UNDER THE ACT F MARCH 3, 1883, AS AMENDED APRIL 30, *1928; 370 O. G. .757)

out the payment to me of any royalty there-V on. i This invention relates to an insulated driving connection especially adapted for acous-v tic members.

In certain classes of sound apparatus, such as those employed in locating the source of sound of a moving object, for example, an airplane, the horns are mounted on a support for movement in azimuth and elevation. In order to damp out any sound vibrations which arise from metallic actuating parts or electrical apparatus on the support, it has been proposed to form a bearing of a sound-damping material. Since the mechanismfor moving a sound apparatus in elevation must be directly connected thereto,

the bearing must be of a character to establish a driving connection between the parts. The purpose of the present invention is to provide a novel arrangement of an insulated driving connection in which the insulation may be adjusted to compensate for shrinkage and its assembly facilitated.

With the foregoing and other objects in View, the invention resides in the novel arrangement and combination of parts and in,

the details of construction hereinafter described and claimed, it being understood. that changes in the precise embodiment of the invention herein disclosed may be made within the scope of what is claimed without departing from the spirit of the invention.

A practical embodiment of the invention is illustrated in the accompanying drawings, wherein:

Fig. 1 is a longitudinal sectional View on the line 1 1 of Fig. 2 of a bearing showing the improved insulated driving connection;

Fig. 2 is a sectional view on the line 2 2 of Fig. 1;

Fig. 3 is a diagrammatic plan view.

Referring to the drawings by numerals of reference:

There is shown a support 5 for mounting a member 6 which is to ybe driven through a 50 sleeve 7 on which is secured a gear segment 8.V The driven member 6 is inserted through the sleeve and is supported thereby through a bushing 9 of an insulating material.

For the purpose of establishing a driving connection between the member 6 and the sleeve, the bushing is made in sections 10-10 which are placed between alternately disposed, longitudinally extending fins 11 and 12 formed respectively on the inner wall of the sleeve and on the outer wall of a thimble 13 which is splined on the member '6. By suitable formation of the fins a wedge-way may be established and as seen in Fig. 3, both of the fins are wedge-shaped in the direction of their length and reversely disposed with respect to each other. This enables the sections 10 of insulating material to be formed with substantially par-l allel sides.

One end of the thimble 13 terminates in a reduced extension 14 on which is threaded a nut 15 seating on a collar 16 fast on the driven member. Rotation of the nutr will cause the thimble 13 to be advanced, therebyy firmly compressing the insulation between the wedge-shaped finsk and insuring a drive connection in which all playis removed.

Y By virture vof this arrangement the parts. involved need not be accurately dimensioned and the insulation., even-though resilient, may be readily inserted and adjusted.

I claim:

1. A bearing including a support, a driving sleeve mounted in the support and formed internally with longitudinally eX- tending fins, a driven member within the sleeve, a thimble splined on said member .and formed externally with longitudinally4 extending fins, the fins on the sleeve and thimble being alternately arranged and reversely disposed with respect to each other to form Wedge-Ways and an insulating member in each Wedge-Way.

3. A bearing including a support, a driving member mounted on the support, a driven member Within Jche driving member, a thimble slidably keyed on the driven member and spaced from the driving member, means on the sleeve and thimble cooperating to form Wedge-Ways sound damping material in the Wedge-Ways, and means for axially moving the thimble.

WALTER E. KROTEE. 

